Once of the most common questions we get asked is – whats a simple acoustic floor upgrade for timber floors?
There is a couple of answers in regards to this:
1. For airborne sound improving the mass and isolation is key.
2. For Impact sound isolating the construction elements is key.
Sometimes by adding mastic between existing floorboards then adding a bonded resilient layer to the top of the boards this will be enough to improve the impact sound levels to pass the Part E sound testing.
To improve airborne sound, acoustic insulation can be added be installed between joists then install a layer of plasterboard (or leave the existing finish in place) to the underside of joists. Install a acoustic resilient frame below the plasterboard. To the underside of the resilient frame add two layers of lapped sound board . Fill all plasterboard joints with acoustic mastic.
By undertaking the above this should provide enough sound insulation to Pass part E of Building Regulations, however each project is different so please dont use the above detailing without speaking to us first at firstname.lastname@example.org.